Efficacy and safety of small extracellular vesicle interventions in wound healing and skin regeneration: A systematic review and meta-analysis of animal studies

Al-Masawa, Maimonah Eissa and Alshawsh, Mohammed Abdullah and Ng, Chiew Yong and Ng, Angela Min Hwei and Foo, Jhi Biau and Vijakumaran, Ubashini and Subramaniam, Revatyambigai and Ghani, Nur Azurah Abdul and Witwer, Kenneth Whitaker and Law, Jia Xian (2022) Efficacy and safety of small extracellular vesicle interventions in wound healing and skin regeneration: A systematic review and meta-analysis of animal studies. Theranostics, 12 (15). pp. 6455-6508. ISSN 1838-7640, DOI https://doi.org/10.7150/thno.73436.

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Abstract

Small extracellular vesicles (sEVs) have been proposed as a possible solution to the current lack of therapeutic interventions for endogenous skin regeneration. We conducted a systematic review of the available evidence to assess sEV therapeutic efficacy and safety in wound healing and skin regeneration in animal models. 68 studies were identified in Web of Science, Scopus, and PubMed that satisfied a set of prespecified inclusion criteria. We critically analyzed the quality of studies that satisfied our inclusion criteria, with an emphasis on methodology, reporting, and adherence to relevant guidelines (including MISEV2018 and ISCT criteria). Overall, our systematic review and meta-analysis indicated that sEV interventions promoted skin regeneration in diabetic and non-diabetic animal models and influenced various facets of the healing process regardless of cell source, production protocol and disease model. The EV source, isolation methods, dosing regimen, and wound size varied among the studies. Modification of sEVs was achieved mainly by manipulating source cells via preconditioning, nanoparticle loading, genetic manipulation, and biomaterial incorporation to enhance sEV therapeutic potential. Evaluation of potential adverse effects received only minimal attention, although none of the studies reported harmful events. Risk of bias as assessed by the SYRCLE's ROB tool was uncertain for most studies due to insufficient reporting, and adherence to guidelines was limited. In summary, sEV therapy has enormous potential for wound healing and skin regeneration. However, reproducibility and comprehensive evaluation of evidence are challenged by a general lack of transparency in reporting and adherence to guidelines. Methodological rigor, standardization, and risk analysis at all stages of research are needed to promote translation to clinical practice.

Item Type: Article
Funders: Universiti Kebangsaan Malaysia [GUP-2021-033], Faculty of Medicine, Universiti Kebangsaan Malaysia [FF-2021-096], Organization for Women in Science for The Developing World (OWSD), Norwegian Agency for Development Cooperation - NORAD
Uncontrolled Keywords: Extracellular vesicle; Exosome; Wound healing; Skin regeneration; Animal models
Subjects: R Medicine
Divisions: Faculty of Medicine
Depositing User: Ms. Juhaida Abd Rahim
Date Deposited: 15 Sep 2023 07:32
Last Modified: 15 Sep 2023 07:32
URI: http://eprints.um.edu.my/id/eprint/41263

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